Rep. Michael Grimm (R-N.Y.) has decided to resign from Congress in the wake of his guilty plea on a felony tax evasion charge, according to multiplereports.

Grimm pleaded guilty to felony tax evasion last week. He had just been re-elected to represent New York's 11th District in November, and had publicly declared that he would not resign despite conviction.

Grimm faced 20 counts of fraud and tax evasion related to a health-food restaurant he owned in Manhattan. A former FBI agent and Marine, Grimm bought the restaurant, Healthalicious, after leaving the FBI in 2006, according to the New York Times. Prosecutors said Grimm hid more than $1 million in income and paid restaurant employees under the table to avoid taxation.

Grimm is known for threatening to break a NY1 reporter in half earlier this year: